Answered: A certain drug can be used to reduce…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A certain drug can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of the drug claims that more than

93%

of patients taking the drug are healed within 8 weeks. In clinical trials,

215

229

patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim at the

α=0.05

level of significance.

Because

np01−p0=nothing

▼

less than<

equals=

greater than>

not equals≠

10,

the sample size is

▼

greater thangreater than

less thanless than

5% of the population size, and the sample

▼

cannot be reasonably assumed to be random,

is given to not be random,

is given to be random,

can be reasonably assumed to be random,

the requirements for testing the hypothesis

▼

are

are not

satisfied.

(Round to one decimal place as needed.)

What are the null and alternative hypotheses?

H0:

▼

sigmaσ

muμ

▼

greater than>

not equals≠

equals=

less than<

nothing

versus

H1:

▼

sigmaσ

muμ

▼

less than<

equals=

greater than>

not equals≠

nothing

(Type integers or decimals. Do not round.)

Find the test statistic,

z0.

z0=nothing

(Round to two decimal places as needed.)

Find the P-value.

P-value=nothing

(Round to three decimal places as needed.)

Choose the correct conclusion below.

Reject

the null hypothesis. There

is insufficient

evidence to conclude that more than

93%

of patients taking the drug are healed within 8 weeks.

Reject

the null hypothesis. There

is sufficient

evidence to conclude that more than

93%

of patients taking the drug are healed within 8 weeks.

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